1 Whosoever believeth that Jesus is the Christ is born of God: and every one that loveth him that begat loveth him also that is begotten of him. 2 By this we know that we love the children of God, when we love God, and keep his commandments. - 1 John 5:1-2 (KJV)
John is saying that those that believe Jesus is the Christ, get born again, as believing in Jesus is what gets you born again (Acts 16:31). Although it is easy to get born again (John 3:16), that is not all there is to being saved, as you must truly believe in your heart, and confess with your mouth, that Jesus is raised from the dead, and make Him your Lord (Romans 10:9-10). When you make Jesus your Lord, then you must follow His commands (Hebrews 5-9), that are in the bible, and that come through the Holy Spirit. If you truly follow Jesus in all you do, and love God, you will also prove that you love Jesus.
We prove our love for all the other Christians (children of God), by keeping the commandments that Jesus gave us, to love one another (1 John 3:23). If you truly love God, and His Son Jesus, then you will have your “want to” changed, and you will want to live for them, and keep the commandments of Jesus. If you are born again, you have been given the fruit of the Spirit (Galatians 5:22-23), which includes Gods kind of AGAPE love, and if you will let that love flow through you toward others, you will prove that God is in you, as He is love (1 John 4:8). If you have a hard time loving others, then you either are not truly born again, or you are walking in the flesh, instead of the spirit. Let your light shine (Matthew 5:16) by letting the love of God flow through you to others – praise God for the fruit of the Spirit.
Devotional by Pastor Joe W. Green, www.Infinite-Faith.com